Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Archery Accuracy0.01871473574%7.1Harden
Average Character0.00271907173791%1.9Easyen
Black and White0.0759220716982%4.7Mediumen
Circle Bounce0.002001079488%5.1Mediumen
Diagonals0.001853694870%7.0Harden
Dorm Room Divide0.0147627319471%6.1Harden
Double Password0.00182711254094%1.4Easyen
Fail Them All!0.008991548656%7.9Harden
Hopscotch 5000.1187818613170%7.1Harden
Overdraft0.00361365122390%1.8Easyen
Problem Set Construction0.01940564275%6.0Harden
Reversibly Cyclic Strings0.003133328385%3.2Mediumen
Rise and Fall0.008835125874%4.5Mediumen
Scaling Recipe0.0034101492191%2.0Easyen
Shortest Missing Subsequences0.0939415211576%5.6Harden
Square Bounce0.00410806176%5.4Mediumen
Tetris Generation0.009043328466%5.8Harden
Tournament Seeding0.0122025621182%3.9Mediumen
Tree Hopping0.0289331524277%5.8Harden
Who Goes There?0.008849639780%3.5Mediumen
XOR Island0.002791238367%6.5Harden